java - 返回最大值的方法不起作用

Question

我对我在这里做错了什么感到困惑。有谁愿意解释一下吗？它编译并运行，但我在第 50 行(返回行)处不断收到错误。

此外，如果我将下面的代码更改为“int max = (number1, number2)”，我会收到找不到符号错误。任何帮助将不胜感激。

int max = max(num1, num2); 

    import java.io.*;
import java.util.Scanner;

public class MethodLab {

   public static void main(String[] args) {
     // variable declarations for part 1
     String title;
     String firstName;
     String lastName;
     Scanner in = new Scanner(System.in);
     // prompt for input for part 1
     System.out.print("Enter a title:");
     title = in.next();
     System.out.print("Enter your first name:");
     firstName = in.next();     
     System.out.print("Enter a your last name:");
     lastName = in.next();
     // call the method for part 1
     greeting(title, firstName, lastName);

     // variable declarations for part 2
     int number1;
     int number2;
     // user prompts for part 2
     System.out.print("Enter first number:");
     number1 = in.nextInt();
     System.out.print("Enter second number:");
     number2 = in.nextInt();
     // call the method for part 2 inside the println statement
     System.out.println("The largest number is " + max(number1, number2));
 }

 /******************** greeting method goes here*********************/
   public static void greeting(String proper, String fname, String lname){
     System.out.println();
     System.out.printf("Dear " + proper +" "+ fname + " "+ lname);
     System.out.println();
   }






  /***********************end of method*************************/

  /******************** max method goes here*********************/
   public static int max(int num1,int num2){
     int max = max(num1, num2);
     return max;
   }

Answer 1

使用int max = Math.max(num1, num2)这将返回最大数字。